When designing a SQL server data schema and the subsequent queries, sprocs, views, etc. does the notion of a clustered index and order of data on disk make any sense to consider for DB designs made ...

This 2007 White Paper compares the performance for individual select/insert/delete/update and range select statements on a table organized as a clustered index vs that on a table organized as a heap ...

I am currently doing some data imports into a legacy system and discovered that this system does not use a single clustered index. A quick Google search introduced me to the concept of HEAP tables and ...

I recently heard that the data pages in a clustered index aren't stored contiguously. Is this true?
Perhaps data pages are normally stored contiguously with some exceptions to the rule? Or perhaps I ...

When an index is disabled, the definition remains in the system catalog but is no longer
used.
SQL Server does not maintain the index (as data in the table changes), and the index
cannot be used to ...

In Sql Server (2008), is it possible to have a PRIMARY KEY on a set of columns without either CLUSTERED or NONCLUSTERED indexes on the same set of columns?
I am aware of the fact that PRIMARY KEY and ...

We have a table in our database with over 200 million rows and a Clustered Primary Key Index which is over 100GB. The Primary Key is only so large because many more millions of rows have been archived ...

I have fairly large fact table (2 billion records, approx 120 GB). This table is not partitioned and the queries are very slow to respond. I am planning to partition the table and indexes.
The table ...

I have found that when a table has both clustered and non-clustered indexes (on different columns), the leaf level non-clustered pages, instead of pointing to the data row, point to the node of the ...

I have a tickets table with an id that I need to associate to a lookup table where the counterpart of that data is another id that is controlled from an outside source.
tickets
- id
- sutff
lookup
- ...

What do indexes look like in an Entity Relationship Diagram?
I've googled it and I'm unsure what the standard look of an index is in an ERD. And I'm talking about the crowsfoot diagram that includes ...

If you have a table without a good candidate field or fields for a clustered index (stable, sequential), is it better to have a clustered index on a bad field or is it better to make all table indices ...

I am contemplating using a datetime2(7) as a clustered index.
If I were to always populate that column using SYSDATETIME is it possible for the same instance to issue the same value twice (assuming ...

I've created a process whereby I am able to only rebuild indexes that need rebuilding(the process takes an hour and a half if I rebuild them all), and while it works beautifully, it gets stuck on one ...

I have a big database (200GB+) that contains some log info. And I want to speed up SELECT queries and stored procedures. I have a table with a GeneratedOnUtc datetime column, and have a non-clustered ...

From a Microsoft Course (presented by a third party) I learned that when a table has a clustered index even non-clustered indexes hit the clustered index.
When there is not a clustered index (Heap) ...

Using: SQL Server 2008 R2
I am currently stepping through a query execution plan, and have come across an instance of a clustered index update on a table. The issue here is that the columns that are ...

A clustered index will sort row data in a table according to the ordering of the fields in the index. If so, why would you (or would you not) want to create a clustered index on the child table in a ...

In MySQL/InnoDB, the clustered index is synonymous with the primary key, so picking up a poor primary key affect your db performance, i.e. use of UUID as PK is a performance killer for database write.
...

We have some data saved for reporting each of our tables currently has a unique id column that has an auto generated clustered index on the pk and a non-clustered index for the fk.
I am thinking that ...